Question

Factor completely.

20x3 + 12x2 + 5x + 3

(2x2 + 1)(5x + 3)

(2x2 + 3)(5x + 3)

(4x2 + 1)(x + 3)

(4x2 + 1)(5x + 3)

Answer 1

look at the options
which option gives 20x^3 when you multiply the first term in each bracket
AND gives +3 when you multiply the last terms in each bracket

Answer 2

ok im not doing all the work. think about what @cwrw238 said

Answer 3

then take it from there

Answer 4

isnt it the last one

Answer 5

yes

Answer 6

oh ok thanks now i kind of get this

Answer 7

4x2 * 5x = 20x3
and +1 *+3 = +3

Answer 8

good

Answer 9

see? it wasnt that bad. ok lol im going to shud up now. lol ;)